202021121200001 has 2 divisors, whose sum is σ = 202021121200002. Its totient is φ = 202021121200000.

The previous prime is 202021121199983. The next prime is 202021121200027. The reversal of 202021121200001 is 100002121120202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175107022305601 + 26914098894400 = 13232801^2 + 5187880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202021121200001 is a prime.

It is not a weakly prime, because it can be changed into another prime (202021121200061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010560600000 + 101010560600001.

It is an arithmetic number, because the mean of its divisors is an integer number (101010560600001).

Almost surely, 2^{202021121200001} is an apocalyptic number.

It is an amenable number.

202021121200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021121200001 is an equidigital number, since it uses as much as digits as its factorization.

202021121200001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202021121200001 its reverse (100002121120202), we get a palindrome (302023242320203).

The spelling of 202021121200001 in words is "two hundred two trillion, twenty-one billion, one hundred twenty-one million, two hundred thousand, one".